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Finding the Fourth Proportional to 67,807.33, 101,709.64 and 21,060.07

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Solution

The fourth proportional to 67,807.33, 101,709.64 and 21,060.07 is: 31,589.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,807.33 : 101,709.64 = 21,060.07 : x
  2. Step 2: Convert to fraction form
    67,807.33/101,709.64 = 21,060.07/x
  3. Step 3: Cross multiply
    67,807.33x = 101,709.64 × 21,060.07
  4. Step 4: Simplify right side
    67,807.33x = 2,142,011,910.13
  5. Step 5: Solve for x
    x = 2,142,011,910.13/67,807.33
  6. Step 6: Final answer
    x = 31,589.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.